Exam 2: The Chemistry of Life

Lipids are all ________.

Individual water molecules are held to one another by relatively weak ________ bonds.

Which of the following large organic molecules includes table sugar?

If the number of protons in an atom does not match the number of electrons,the atom is specifically called an ________.

While the maximum number of electrons required to fill the outermost shell of an atom varies depending on the size of the atom,almost all of the smaller atoms (atomic numbers 2-20)are considered stable (nonreactive)when they contain ________ electron(s)in the outermost shell.

How many neutrons in a carbon-14 atom?

What is the most common element in your body?

How many neutrons are in a typical carbon atom?

Which is not one of the four atoms that make up the bulk of living organisms?

Which of the following dietary fats is considered to be the most healthy?

What are the monomers of proteins?

The typical carbon atom is described in the periodic table by the accompanying box.How many protons are in a typical carbon atom?

An old home remedy for anemia was to drink from a jug of water into which was added a handful of iron nails.Why might this have been effective at treating certain forms of anemia?

The 2+ in Cu²⁺ tells us that this atom ________.

Identify the reactants in the following chemical reaction: C₁₀H₈ + 12 O₂ → 10 CO₂ + 4 H₂O

Why is one side of a water molecule partially negative while the other side is partially positive?

Proteins are diverse molecules that perform a wide variety of functions.Which of the following is not a typical function of proteins?

Which of the following is not made from long chains of glucose?

Individual amino acids have unique chemical qualities but these do not directly determine the function of an enzyme.What then is the role of the individual amino acid's unique chemical qualities and what then directly determines the function of an enzyme?

Why does sweating cool your skin on a hot,dry day but makes you feel warmer on a hot,humid day?